Extreme Heat and Tropical Storm Bertha Impacts

Dangerous heat will expand from the Gulf Coast into the Southern Plains and Desert Southwest through week's end. Additional extreme heat impacting the Pacific Northwest will shift to the northern Plains by the weekend. Tropical Storm Bertha is expected to continue to impact portions of the northern Gulf Coast from the western Florida Panhandle to southeastern Louisiana through tonight. Read More >

For More Weather Information:

Philadelphia, PA Local Forecast Office

31NM NNW Lewes DE

Marine Point Forecast

[NOTICE]
    • Thursday

      Thursday:N wind 5 to 10 kt. Mostly cloudy, then gradually becoming sunny. Waves around 1 ft.

      High: 82 °F

      N 10kt
      1ft

    • Thursday Night

      Thursday Night:Variable winds 5 kt or less. Clear. Waves around 1 ft.

      Low: 68 °F

      Light Wind
      1ft

    • Friday

      Friday:NE wind 5 to 10 kt becoming ESE in the afternoon. Increasing clouds. Waves around 1 ft.

      High: 82 °F

      ESE 10kt
      1ft

    • Friday Night

      Friday Night:ESE wind 5 to 10 kt becoming ENE after midnight. Partly cloudy. Waves around 1 ft.

      Low: 66 °F

      ESE 10kt
      1ft

    • Saturday

      Saturday:Variable winds 5 kt or less. Mostly sunny. Waves around 1 ft.

      High: 82 °F

      Light Wind
      1ft

    • Saturday Night

      Saturday Night:Variable winds 5 kt or less. Partly cloudy. Waves around 1 ft.

      Low: 65 °F

      Light Wind
      1ft

    • Sunday

      Sunday:Variable winds 5 kt or less. Mostly sunny. Waves 1 ft or less.

      High: 83 °F

      Light Wind
      < 1ft

    • Sunday Night

      Sunday Night:Variable winds 5 kt or less. Partly cloudy. Waves around 1 ft.

      Low: 66 °F

      Light Wind
      1ft

    • Monday

      Monday:Variable winds 5 kt or less. Mostly sunny. Waves around 1 ft.

      High: 86 °F

      Light Wind
      1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 12:59 am EDT Jul 23, 2026
Forecast Valid: 1am EDT Jul 23, 2026-6pm EDT Jul 29, 2026

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Detailed Forecast


Thursday
N wind 5 to 10 kt. Mostly cloudy, then gradually becoming sunny. Waves around 1 ft.
Thursday Night
Variable winds 5 kt or less. Clear. Waves around 1 ft.
Friday
NE wind 5 to 10 kt becoming ESE in the afternoon. Increasing clouds. Waves around 1 ft.
Friday Night
ESE wind 5 to 10 kt becoming ENE after midnight. Partly cloudy. Waves around 1 ft.
Saturday
Variable winds 5 kt or less. Mostly sunny. Waves around 1 ft.
Saturday Night
Variable winds 5 kt or less. Partly cloudy. Waves around 1 ft.
Sunday
Variable winds 5 kt or less. Mostly sunny. Waves 1 ft or less.
Sunday Night
Variable winds 5 kt or less. Partly cloudy. Waves around 1 ft.
Monday
Variable winds 5 kt or less. Mostly sunny. Waves around 1 ft.

*Notices:

  1. This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
  2. The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.
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ABOUT THIS FORECAST

Point Forecast: 39.25°N 75.41°W
Last Update: 12:59 am EDT Jul 23, 2026
Forecast Valid: 1am EDT Jul 23, 2026-6pm EDT Jul 29, 2026
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